Thailand weather in December

Wondering about the weather in Thailand in December? Read on for a run-down of everything you need to know. Here we cover everything from average air and sea temperatures, to what to expect in terms of costs and crowds, and what to wear. In addition, we share inspired itinerary suggestions that’ll help you make the most of your trip.

Is December a good time to visit Thailand?

December is a great time to visit Thailand. The weather in Thailand in December is generally dry and pleasant, with milder temperatures in the north and central areas and ideal beach weather in the south. 

The vacation season in Thailand is full of festive decorations and celebrations, but it is also the peak of tourist traffic, especially during the Christmas and New Year period, so it is advisable to book accommodation well in advance. 

Despite the crowds and higher prices in popular tourist areas, cultural events and festivals such as New Year celebrations make this an extremely attractive time to explore this beautiful country.

Ready to explore Thailand? Embark on your dream trip hassle-free with the help of our Thailand travel experts.

Average daily temperatures in December

December is one of the coolest and driest months in Thailand, making it perfect for travel. In Bangkok, expect highs of 87°F (31°C) and lows around 70°F (21°C). Chiang Mai enjoys cooler days at 82°F (28°C) and chilly nights around 59°F (15°C). 

In Phuket, Krabi and Samui, it’s tropical with highs of 87°F (31°C) and lows of 77°F (25°C). Rain is minimal across the country, with Bangkok and Chiang Mai receiving less than 1 inch (25mm), while Phuket sees around 3 inches (80mm). You’ll get plenty of sunshine, with around 9 hours per day.

Rough Guides tip: As you plan your trip to Bangkok, make sure to choose the ideal place to stay in the city.

What about the crowd & cost?

Thailand is at its busiest as tourists come for winter vacations. Popular islands like Koh Phi Phi, Koh Samui, and Phuket are packed. Prices for hotels, flights, and tours are at their highest, especially around Christmas and New Year. Major attractions like the temples in Bangkok or Chiang Mai’s Old City will be crowded, so patience is required. Advance reservation is essential if you want to secure accommodations at reasonable rates. If you’re looking to avoid the crowds, consider heading to lesser-known regions like Nan or Loei.

Decided to book a December break? For further inspiration, discover more of the best places to visit in December.

What to do in Thailand in December

While going on a trip, one must consider the weather in Thailand in December and the nuances that this month brings. You may also be interested in our list of the best things to do in Thailand at any time of year.

Get into the festive mood

In December, Thailand comes alive with a unique blend of Thai culture and festive spirit. Tourist areas are decorated with magnificent decorations to create a festive atmosphere. Take part in the celebrations and witness the harmonious fusion of local traditions and the joy of the festive season.

Enjoy the outdoor activities

Thailand's diverse landscapes make December the perfect time for outdoor enthusiasts. You can explore lush national parks, go on thrilling hikes or discover pristine lakes by kayaking. 

For underwater adventures, you can dive into crystal clear waters and see colorful coral reefs teeming with marine life. Also, Khao Sok National Park with its dense rainforests and mesmerizing wildlife is the perfect place for nature lovers and adventure seekers in December.

Make sure to read all about the best time to visit Thailand.

Witness Thai traditional performances

Immerse yourself in Thailand's rich cultural heritage with fascinating traditional performances. Witness the mesmerizing Khon, a classic masked dance that recounts epic events from Thailand's history. 

Experience the adrenaline rush of Muay Thai boxing, an integral part of Thai culture. In December, these cultural shows offer a deeper understanding of the country's traditions and enrich your Thailand trip.

Enjoy your beach time

Thailand's coastal gems beckon with their golden shores. Head to Phuket, Krabi, Koh Samui or Pattaya to soak up the sun, take a dip in crystal clear waters and enjoy water sports such as snorkelling, diving and parasailing. 

The favorable December weather provides optimal conditions for beach vacations, whether you are looking for relaxation or exciting adventure. These destinations promise a tropical paradise where you can relax, splash around or explore the stunning shores.

Festivals and events in Thailand in December

There are several festivals and events that take place in Thailand in December. Here's our pick:

• King's Birthday / Father's Day: Celebrates the late King Bhumibol's birthday, honoring him and fathers nationwide. Features alms-giving ceremonies, candle-lighting rituals, and special Father's Day activities throughout the country.
• Constitution Day: Commemorates the adoption of Thailand's first constitution in 1932. Government offices close, and some locations hold ceremonies or exhibitions about Thai democracy and history.
• Ayutthaya World Heritage and Red Cross Fair: Annual event at the historic Ayutthaya park. Features cultural performances, historical reenactments, traditional craft demonstrations, and Red Cross charity activities.
• Phuket King's Cup Regatta: Prestigious sailing event held in honor of the late King Bhumibol. Attracts international sailing teams for a week of races in the Andaman Sea. Includes social events and parties.

Plan your trip with our Thailand itineraries

Our Thailand itineraries are crafted to help you experience the best of the country, stress-free. Think of them as a starting point — perfect for planning, but flexible enough to adjust to your own pace and interests. After all, travel is about freedom, but a little planning goes a long way.

• Thailand itinerary 7 days: A week in Thailand is just enough to see the highlights, usually a mix of Bangkok, one cultural destination, and some beach time.
• Thailand itinerary 10 days: Ten days lets you explore multiple regions, such as Bangkok, northern Thailand, and a few days on the coast.
• Krabi itinerary: Explore Krabi’s famous limestone cliffs, emerald waters, and hidden beaches. Great for adventure enthusiasts with options for island hopping, rock climbing, and snorkeling.
• Phuket itinerary: A Phuket trip offers a mix of vibrant nightlife, beautiful beaches, and cultural sites. Expect lively markets, water activities, and a range of beach resorts.
• Chiang Mai itinerary: Discover Chiang Mai’s rich cultural heritage, from ancient temples to bustling night markets. Ideal for travelers looking for a blend of history, local crafts, and lush mountain scenery.